What the stage 5 spike measured on both rigs, written into the stage 5 section of runicnpc/PLAN.md: why an NPC's bullets never hurt an NPC (Rust skips the hit unless the victim's faction is Horror) and the per-shot mark that fixes it; what our own sensing costs against stage 1's; what Rust's turrets, its AI and TruePVE or NextGenPVE do with our NPC; and four questions the answers leave for the org lead. Stage 1's row on fighting NPCs is corrected: its "cover and facing states win" was not the cause. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01E14m6SuuY6i1vASFeGDBeY